401134243 has 2 divisors, whose sum is σ = 401134244. Its totient is φ = 401134242.

The previous prime is 401134207. The next prime is 401134297. The reversal of 401134243 is 342431104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401134243 - 2¹⁷ = 401003171 is a prime.

It is not a weakly prime, because it can be changed into another prime (401134043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200567121 + 200567122.

It is an arithmetic number, because the mean of its divisors is an integer number (200567122).

Almost surely, 2^401134243 is an apocalyptic number.

401134243 is a deficient number, since it is larger than the sum of its proper divisors (1).

401134243 is an equidigital number, since it uses as much as digits as its factorization.

401134243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 401134243 is about 20028.3360017751. The cubic root of 401134243 is about 737.5020736512.

Adding to 401134243 its reverse (342431104), we get a palindrome (743565347).

The spelling of 401134243 in words is "four hundred one million, one hundred thirty-four thousand, two hundred forty-three".